Composition for plaster for walls, ceilings, &amp;c.



UNITED STATES PATENT OFFICE.

HIRAM M. HANMORE, OF LOS ANGELES, CALIFORNIA.

COMPOSITION FOR PLASTER FOR WALLS, CEILINGS, 81.0.

SPECIFICATION forming part of Letters Patent No. 720,799, dated February17, 1903. Application filed October 28, 1902. Serial No. 129,095. (Hospecimens.)

To all whom it may concern.-

Be it known that I, HIRAM M. HANMORE, a citizen of the United States,and a resident of Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Composition for Plaster forWalls, Ceilings, and other Parts of Buildings and other Structures, ofwhich the following is a specifioation.

This composition consists of diatomaceous earth, oalcic oxid, kaolin,and animal, vegetable, or mineral fiber. The proportions of theseseveral ingredients may be varied to some extent without materiallychanging the character of the composition; but the proportions which Iprefer are as follows, by weight: diatomaceous earth, fifty parts;calcic oxid, thirty parts; kaolin, ten parts, and fiber, ten parts.

' The composition is made in the following manner: The diatomaceonsearth, caloic oxid,

and the kaolin are ground to powder and, with the fiber, are placed inany suitable mixing apparatus, by which they are intimately mixedtogether. All that is necessary to make this mixture into plaster is theaddition of water in quantity SllfiIGlBllllS to give the mass a properplastic consistency, which is to be determined by the plasterer who usesit.

The composition is to be kept in a dry state until required for use. Itmay be shipped in sacks for transportation and market.

Plaster made from this composition is very light as compared with otherwall-plasters. It becomes very hard andstrong.

I have hereinabove referred to the fiber which I use as animal,vegetable, or mineral. This is comparatively immaterial. The vegetablefiber known as manila is very suitable. This fiber may be cut intosuitable short lengths to mix with the other ingredients. Its purpose ismerely to prevent the plaster from checking while it is drying.

What I claim as my invention is- A composition for wall-plasterconsisting of diatomaceous earth, oalcic oxid, kaolin and fibersubstantially as herein described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 18th day of October, 1902.

I HIRAM li L HANMORE.

Witnesses: v

GEO. B. HANNAMAN, GEO. POMEROY.

